Binary to Binary-Coded Decimal (BCD) Converter

A binary to binary-coded decimal, or BCD for short, is a method storing decimal numbers in binary form. The majority of the time a number in a logic design is stored as a binary number internally as to simplify math and logic operations and converted to a set of BCD numbers only when it needs to then be sent to something that requires it in decimal number form i.e. a display of some sort. The Verilog and VHDL code below is for an 8-bit binary to BCD decoder that gives and ones, tens and hundreds decimal place output for driving a display or other device. Continue reading